Three papers show that Vipp1, a plastid ESCRT-III protein, can form sheets, spirals and regular polygons on flat membranes and tubulate the membranes within stacked rings and helices. This work provides a framework for how Vipp1 can deliver lipids for thylakoid membrane biogenesis and protect and repair the membranes during photosynthesis.
- John McCullough
- Wesley I. Sundquist